Gas producing and indicating package



FIG. 1 is a top plan view of a gas producing and indicating package showing my new design in a partially open condition;

FIG. 2 is a bottom plan view;

FIG. 3 is an end elevational view; and

FIG. 4 is an end elevational view thereof showing the end opposite that seen in FIG. 3. 

The ornamental design for a gas producing and indicating package, substantially as shown. 